Press a pedal of a brake of 5-6 times at the idle engine to create in cavities of the vacuum amplifier the identical pressure close to the atmospheric.

By effort enclosed to a pedal determine, whether there is no jamming of the case of the valve.

Having stopped a brake pedal in the middle of its course, start up the engine. At the serviceable vacuum amplifier the brake pedal after start-up of the engine should leave forward. If it did not occur, check fastening of a tip of a hose, a condition and fastening of a flange of a tip in the amplifier, and also a condition of a hose and unions.

Check a condition of the unidirectional valve on wear and damages. If necessary replace. The valve can be checked, blowing it air in both directions. Thus the valve should pass freely air from the vacuum amplifier of brakes to a vacuum hose.

Removal of the vacuum amplifier

Removal make in the following order:

— remove the main brake cylinder;

— in car salon from the driver remove the bottom furnish of the dashboard;

— remove a lock ring and take a pin from a pusher of a pedal of a brake;

— disconnect a vacuum hose together with the unilateral vacuum valve from the vacuum amplifier of brakes;

— unscrew nuts of fastening of the hydraulic block;

— take the vacuum amplifier of brakes from a motor compartment;

— remove rubber ring consolidation and in case of need replace it.

Installation of the vacuum amplifier

Installation of the amplifier carry out to sequences, to return to removal, previously having put on a pin with a head and an opening under шплинт a drop of universal lubricant.